Adjustable dog collar



FIG. 1 is a front perspective view of an adjustable dog collar showingmy new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front perspective view thereof in an unlocked state; and,

FIG. 10 is a front perspective view thereof in a disassembled state.

CLAIM The ornamental design for an adjustable dog collar, as shown anddescribed.